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Boiler burner management system (LMV2x/3x) via ProtoAir gateway · BACnet points list
Thermal Solutions Siemens LMV2 / LMV3 burner management (Universal Gateway ProtoAir) BACnet points list
Updated 7 November 2026
The ProtoAir Universal Gateway reads a Siemens LMV2x/3x burner management system over Modbus and serves it on BACnet IP or BACnet MS/TP. It reports burner phase, actuator positions, VSD output, fuel and output, flame signal, counters, the current error and an error history entry, and splits the input and output status words into binary objects (safety loop, pressure switches, alarm, ignition, fan, fuel valves). The BMS can write program stop, Modbus mode and timeout, remote operating mode and target output.
This page lists 81 BACnet objects for the Thermal Solutions Siemens LMV2 / LMV3 burner management (Universal Gateway ProtoAir) — 13 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Thermal Solutions’s own free documentation, linked below.
- Manufacturer
- Thermal Solutions
- Model
- Siemens LMV2 / LMV3 burner management (Universal Gateway ProtoAir)
- Equipment
- Boiler burner management system (LMV2x/3x) via ProtoAir gateway
- Equipment type
- Boilers & water heaters
- BACnet objects
- 81 (13 writable)
- Transport
- BACnet IP, BACnet MS/TP
- Firmware
- Not stated
- Also known as
- LMV2_3, LMV2, LMV3, LMV26, LMV37, Siemens LMV2x/3x, ProtoAir FPA-W44, Universal Gateway 106417-04
Reference only, provided as-is: verify against Thermal Solutions’s current documentation and the live device before use. Not official Thermal Solutions information. Terms of use.
BMS integration notes: Thermal Solutions Siemens LMV2 / LMV3 burner management (Universal Gateway ProtoAir)
Add the LMV2_3 profile in the ProtoAir Web Configurator with a unique Node-ID and discover it at 50000 + Node-ID. Read burner phase, current output, flame signal, alarm and the current error code. For remote control set Modbus mode to remote and write the remote operating mode and target output, checking the Modbus breakdown time setting (AV 16).
Minimum points to map
The short list most integrators start with — enough to run the unit from a BMS. Map more as the job needs.
| Object | Name | Why | Access |
|---|---|---|---|
| AV 15 | Modbus mode | Local or remote (Modbus/BMS) operation | Write |
| AV 17 | Operating mode in remote op | Operating mode while in remote operation | Write |
| AV 18 | Preselect target output mod/multistg | Target output (firing rate) in remote operation | Write |
| AI 1 | Burner control phase | Burner sequence phase | Read |
| AI 6 | Current output | Current burner output | Read |
| AI 7 | Flame signal | Flame signal | Read |
| BI 17 | Alarm | Burner alarm output | Read |
| AI 10 | Current error: Error code | Current error code | Read |
| BV 1 | Com Status | Modbus link between ProtoAir and the LMV | Read |
Enable & remote start
AV 15 Modbus mode selects local or remote (Modbus) operation; in remote the LMV uses AV 17 and AV 18. The manual does not list the values.
Network setup
- Device instance = Node_Offset (default 50,000) + the controller's Node-ID (1-255), so Node-ID 1 gives 50001.
- ProtoAir default IP address is 192.168.1.24, mask 255.255.255.0.
- Add each controller as a profile in the ProtoAir Web Configurator and give it a unique Node-ID.
Watch out for
- Hours-run, start-counter and fuel-volume AVs are resettable counters; do not write them cyclically.
- No state texts are printed for Modbus mode or the operating mode; check the Siemens documentation.
- AV 16 Modbus breakdown time is a timeout setting; the manual gives no default or behaviour for it.
Thermal Solutions Siemens LMV2 / LMV3 burner management (Universal Gateway ProtoAir) BACnet objects
Type: AI, AO, AV, BI, BO, BV, MI/MO/MV (multi-state) · Access: Read read-only, Write writable, Command writable with a priority array.
Note: the source document has no read/write column, so access here is inferred from the object type (inputs read-only, values writable). Confirm on the live controller before writing.
| Description | States | |||||
|---|---|---|---|---|---|---|
| BVmin | 1 | Com Status | Modbus link from the ProtoAir to the controller | Read | ||
| AImin | 1 | Burner control phase | Burner sequence phase | Read | ||
| AI | 2 | Pos of current fuel actuator | Pos of current fuel actuator | Read | ||
| AI | 3 | Pos of air actuator | Pos of air actuator | Read | ||
| AI | 4 | Manipulated variable VSD | Manipulated variable VSD | Read | ||
| AI | 5 | Current type of fuel | Current type of fuel | Read | ||
| AImin | 6 | Current output | Current output | Read | ||
| AImin | 7 | Flame signal | Flame signal | Read | ||
| AI | 8 | Current fuel throughput | Current fuel throughput | Read | ||
| AI | 9 | Startup counter total | Startup counter total | Read | ||
| AImin | 10 | Current error: Error code | Current error: Error code | Read | ||
| AI | 11 | Current error: Diagnostic code | Current error: Diagnostic code | Read | ||
| AI | 12 | Current error: Error class | Current error: Error class | Read | ||
| AI | 13 | Current error: Error phase | Current error: Error phase | Read | ||
| AV | 14 | Program stop | Program stop | Write | ||
| AVmin | 15 | Modbus mode | Modbus mode | Write | ||
| AV | 16 | Modbus breakdown time | Modbus breakdown time | Write | ||
| AVmin | 17 | Operating mode in remote op | Operating mode in remote op | Write | ||
| AVmin | 18 | Preselect target output mod/multistg | Preselect target output mod/multistg | Write | ||
| AV | 19 | Hours run fuel 0 resettable | Hours run fuel 0 resettable | Write | ||
| AV | 20 | Hours run fuel 1 resettable | Hours run fuel 1 resettable | Write | ||
| AI | 21 | Hours run unit live | Hours run unit live | Read | ||
| AV | 22 | Start counter fuel 0 resettable | Start counter fuel 0 resettable | Write | ||
| AV | 23 | Start counter fuel 1 resettable | Start counter fuel 1 resettable | Write | ||
| AI | 24 | Start counter total | Start counter total | Read | ||
| AV | 25 | Fuel volume fuel 0 resettable | Fuel volume fuel 0 resettable | Write | ||
| AV | 26 | Fuel volume fuel 1 resettable | Fuel volume fuel 1 resettable | Write | ||
| AI | 27 | Number of faults | Number of faults | Read | ||
| AV | 28 | Preselected output Fuel 0 | Preselected output Fuel 0 | Write | ||
| AV | 29 | Preselected output Fuel 1 | Preselected output Fuel 1 | Write | ||
| AI | 30 | Burner control parameter set code | Burner control parameter set code | Read | ||
| AI | 31 | Burner control parameter set version | Burner control parameter set version | Read | ||
| AI | 32 | Burner control identification number | Burner control identification number | Read | ||
| AI | 33 | SW version burner control | SW version burner control | Read | ||
| AI | 34 | Min output fuel 0 | Min output fuel 0 | Read | ||
| AI | 35 | Max output fuel 0 | Max output fuel 0 | Read | ||
| AI | 36 | Min output fuel 1 | Min output fuel 1 | Read | ||
| AI | 37 | Max output fuel 1 | Max output fuel 1 | Read | ||
| AI | 38 | Operation mode of burner fuel 0 | Operation mode of burner fuel 0 | Read | ||
| AI | 39 | Operation mode of burner fuel 1 | Operation mode of burner fuel 1 | Read | ||
| AI | 40 | Error History Current Error | Error History Current Error | Read | ||
| AI | 41 | Error History Diagnostic Code | Error History Diagnostic Code | Read | ||
| AI | 42 | Error History Error Class | Error History Error Class | Read | ||
| AI | 43 | Error History Error Phase | Error History Error Phase | Read | ||
| AI | 44 | Error History Type of Fuel | Error History Type of Fuel | Read | ||
| AI | 45 | Error History Output | Error History Output | Read | ||
| AI | 46 | Error History Start counter total | Error History Start counter total | Read | ||
| AI | 47 | Inputs Word | Input status word | Read | ||
| BI | 1 | Controller On/Off | Controller on/off | Read | ||
| BI | 2 | Inputs Word 1 | Input word bit 1 | Read | ||
| BI | 3 | Inputs Word 2 | Input word bit 2 | Read | ||
| BI | 4 | Inputs Word 3 | Input word bit 3 | Read | ||
| BI | 5 | Inputs Word 4 | Input word bit 4 | Read | ||
| BI | 6 | Inputs Word 5 | Input word bit 5 | Read | ||
| BI | 7 | Inputs Word 6 | Input word bit 6 | Read | ||
| BI | 8 | Pressure Switch Valve Proving | Pressure Switch Valve Proving | Read | ||
| BI | 9 | Safety Loop | Safety Loop | Read | ||
| BI | 10 | Inputs Word 9 | Input word bit 9 | Read | ||
| BI | 11 | Pressure Switch Min | Pressure Switch Min | Read | ||
| BI | 12 | Pressure Switch Max | Pressure Switch Max | Read | ||
| BI | 13 | Inputs Word 12 | Input word bit 12 | Read | ||
| BI | 14 | Air Pressure Switch | Air Pressure Switch | Read | ||
| BI | 15 | Inputs Word 14 | Input word bit 14 | Read | ||
| BI | 16 | Inputs Word 15 | Input word bit 15 | Read | ||
| AI | 60 | Outputs Word | Output status word | Read | ||
| BImin | 17 | Alarm | Alarm output | Read | ||
| BI | 18 | Outputs Word 1 | Output word bit 1 | Read | ||
| BI | 19 | Outputs Word 2 | Output word bit 2 | Read | ||
| BI | 20 | Outputs Word 3 | Output word bit 3 | Read | ||
| BI | 21 | Ignition | Ignition output | Read | ||
| BI | 22 | Outputs Word 5 | Output word bit 5 | Read | ||
| BI | 23 | Fan | Fan output | Read | ||
| BI | 24 | Outputs Word 7 | Output word bit 7 | Read | ||
| BI | 25 | Outputs Word 8 | Output word bit 8 | Read | ||
| BI | 26 | Outputs Word 9 | Output word bit 9 | Read | ||
| BI | 27 | Outputs Word 10 | Output word bit 10 | Read | ||
| BI | 28 | Outputs Word 11 | Output word bit 11 | Read | ||
| BI | 29 | Outputs Word 12 | Output word bit 12 | Read | ||
| BI | 30 | Fuel Valve 1 | Fuel Valve 1 | Read | ||
| BI | 31 | Fuel Valve 2 | Fuel Valve 2 | Read | ||
| BI | 32 | Fuel Valve 3/PV | Fuel Valve 3/PV | Read |
No points match these filters.
Object ID lookup: Thermal Solutions Siemens LMV2 / LMV3 burner management point IDs by name
BV1Com StatusAI1Burner control phaseAI2Pos of current fuel actuatorAI3Pos of air actuatorAI4Manipulated variable VSDAI5Current type of fuelAI6Current outputAI7Flame signalAI8Current fuel throughputAI9Startup counter totalAI10Current error: Error codeAI11Current error: Diagnostic codeAI12Current error: Error classAI13Current error: Error phaseAV14Program stopAV15Modbus modeAV16Modbus breakdown timeAV17Operating mode in remote opAV18Preselect target output mod/multistgAV19Hours run fuel 0 resettableAV20Hours run fuel 1 resettableAI21Hours run unit liveAV22Start counter fuel 0 resettableAV23Start counter fuel 1 resettableAI24Start counter totalAV25Fuel volume fuel 0 resettableAV26Fuel volume fuel 1 resettableAI27Number of faultsAV28Preselected output Fuel 0AV29Preselected output Fuel 1AI30Burner control parameter set codeAI31Burner control parameter set versionAI32Burner control identification numberAI33SW version burner controlAI34Min output fuel 0AI35Max output fuel 0AI36Min output fuel 1AI37Max output fuel 1AI38Operation mode of burner fuel 0AI39Operation mode of burner fuel 1AI40Error History Current ErrorAI41Error History Diagnostic CodeAI42Error History Error ClassAI43Error History Error PhaseAI44Error History Type of FuelAI45Error History OutputAI46Error History Start counter totalAI47Inputs WordBI1Controller On/OffBI2Inputs Word 1BI3Inputs Word 2BI4Inputs Word 3BI5Inputs Word 4BI6Inputs Word 5BI7Inputs Word 6BI8Pressure Switch Valve ProvingBI9Safety LoopBI10Inputs Word 9BI11Pressure Switch MinBI12Pressure Switch MaxBI13Inputs Word 12BI14Air Pressure SwitchBI15Inputs Word 14BI16Inputs Word 15AI60Outputs WordBI17AlarmBI18Outputs Word 1BI19Outputs Word 2BI20Outputs Word 3BI21IgnitionBI22Outputs Word 5BI23FanBI24Outputs Word 7BI25Outputs Word 8BI26Outputs Word 9BI27Outputs Word 10BI28Outputs Word 11BI29Outputs Word 12BI30Fuel Valve 1BI31Fuel Valve 2BI32Fuel Valve 3/PV
Integration notes
- The table has no read/write column; AV objects (N2 analog outputs) are taken as writable. BV 1 Com Status is a status point and is listed as read.
- Several AV objects are resettable counters or burner settings (hours run, start counters, fuel volume, preselected outputs); write them only on purpose.
- Binary objects named Inputs Word n / Outputs Word n are unnamed bits of the status words, as printed.
- The manual gives no units, ranges or state texts for this profile; see the Siemens LMV2x/3x Modbus documentation.
Check it against the live device. A points list tells you what the controller can expose; the unit in front of you may differ by firmware or installed options. This list is provided as-is for reference only and may contain mistakes — confirming it before you write, map or commission anything is up to you (terms). Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the Siemens LMV2 / LMV3 burner management (Universal Gateway ProtoAir) and exports what it actually has to Excel — free. New to BACnet? Start with what a BACnet points list is and what the object types mean.
Questions about the Thermal Solutions Siemens LMV2 / LMV3 burner management (Universal Gateway ProtoAir)
How many BACnet points does the Thermal Solutions Siemens LMV2 / LMV3 burner management (Universal Gateway ProtoAir) have?
This list has 81 BACnet objects: 35 analog inputs, 13 analog values, 32 binary inputs, 1 binary value. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Thermal Solutions Siemens LMV2 / LMV3 burner management (Universal Gateway ProtoAir) BACnet points are writable?
13 of the 81 objects accept a write. Points marked Command have a priority array: a write holds until it is released, so release it back to automatic when you are done. The source has no read/write column, so this is inferred from object type.
Where is the official Thermal Solutions Siemens LMV2 / LMV3 burner management (Universal Gateway ProtoAir) BACnet documentation?
The source is Universal Gateway Instruction Manual (ProtoAir): BACnet MS/TP, BACnet IP, N2, Modbus (PN 106417-04 Rev A), revision 2024-05, published free by Thermal Solutions at https://s3-us-west-2.amazonaws.com/catsy.782/Universal+Gateway+ProtoAir+BACnet+Instruction+Manual.pdf.
What are the minimum BACnet points to integrate the Thermal Solutions Siemens LMV2 / LMV3 burner management (Universal Gateway ProtoAir)?
Start with AV 15 Modbus mode (Local or remote (Modbus/BMS) operation); AV 17 Operating mode in remote op (Operating mode while in remote operation); AV 18 Preselect target output mod/multistg (Target output (firing rate) in remote operation); AI 1 Burner control phase (Burner sequence phase); AI 6 Current output (Current burner output); AI 7 Flame signal (Flame signal); BI 17 Alarm (Burner alarm output); AI 10 Current error: Error code (Current error code); BV 1 Com Status (Modbus link between ProtoAir and the LMV).
How do I enable BMS control of the Thermal Solutions Siemens LMV2 / LMV3 burner management (Universal Gateway ProtoAir)?
AV 15 Modbus mode selects local or remote (Modbus) operation; in remote the LMV uses AV 17 and AV 18. The manual does not list the values.
How do I check these points on the real Siemens LMV2 / LMV3 burner management (Universal Gateway ProtoAir)?
Scan the network with a BACnet IP browser such as Easy BACnet, open the device and compare its object list with this table. Anything missing is usually an option that isn't installed or a point that is disabled in the controller's configuration.
More Thermal Solutions BACnet points lists
- Boiler control (ALTA / Phantom II) via ProtoAir gateway
Thermal Solutions ALTA / Phantom II boiler control (Universal Gateway ProtoAir)
U.S. Boiler ALTA and ALTAC and Velocity Boiler Works Phantom II and Phantom Combi II boilers, connected to the Universal Gateway (ProtoAir FPA-W44) on the control's Modbus 2 port.
Also known as: ALTA, ALTAC, U.S. Boiler ALTA, Phantom II, Phantom Combi II, Velocity Boiler Works Phantom II, ProtoAir FPA-W44, Universal Gateway 106417-04 - Boiler controller via ProtoNode gateway
Thermal Solutions Apex / Arctic with Concert or Panasonic 4716 software (Universal Gateway)
Thermal Solutions Apex and Arctic boilers with the Concert control and display, and Apex boilers with the Panasonic display running 4716 software, through the Universal Gateway.
Also known as: Concert, Concert control, Apex 4716, Arctic, Arctic 1000, Arctic 1500, Universal Gateway, 106417-01, ProtoNode RER, FPC-N34-0816 - Boiler controller via ProtoNode gateway
Thermal Solutions Apex with Panasonic display, 4109 software (Universal Gateway)
Thermal Solutions Apex boilers with the control and Panasonic GT02 display running 4109 software, connected through the Universal Gateway.
Also known as: Apex, Apex 4109, Panasonic GT02, Universal Gateway, 106417-01, ProtoNode RER, FPC-N34-0816 - Boiler flame safeguard (RM7800) via ProtoNode gateway
Thermal Solutions EVA / EVO boiler - RM7800 flame safeguard (ProtoNode)
Thermal Solutions EVA, EVAW, EVO and EVOW boilers with an RM7800 series burner control, connected through a ProtoNode FPC-N34.
Also known as: RM7800, Honeywell RM7800, 7800 Series, EVA, EVAW, EVO, EVOW, FPC-N34-0643, ProtoNode FPC-N34 - Boiler operating controller (RWF40) via ProtoNode gateway
Thermal Solutions EVA / EVO boiler - RWF40 controller (ProtoNode)
Thermal Solutions EVA, EVAW, EVO and EVOW boilers whose operating control is an RWF40, connected through a ProtoNode FPC-N34.
Also known as: RWF40, Siemens RWF40, EVA, EVAW, EVO, EVOW, FPC-N34-0643, ProtoNode FPC-N34 - Boiler operating controller (RWF55) via ProtoNode gateway
Thermal Solutions EVA / EVO boiler - RWF55 controller (ProtoNode)
Thermal Solutions EVA, EVAW, EVO and EVOW boilers whose operating control is an RWF55, connected through a ProtoNode FPC-N34.
Also known as: RWF55, Siemens RWF55, EVA, EVAW, EVO, EVOW, FPC-N34-0643, ProtoNode FPC-N34 - Boiler flame safeguard (Fireye YB110) via ProtoAir gateway
Thermal Solutions Fireye YB110 flame safeguard (Universal Gateway ProtoAir)
Thermal Solutions and Bryan boilers with a Fireye YB110 flame safeguard, connected to the Universal Gateway (ProtoAir FPA-W44).
Also known as: YB110, Fireye YB110, BurnerPRO, Fireye, ProtoAir FPA-W44, Universal Gateway 106417-04 - Process meter (boiler plant signal) via ProtoAir gateway
Thermal Solutions Precision Digital Trident PD765 meter (Universal Gateway ProtoAir)
A Precision Digital Trident PD765 process meter used in Thermal Solutions and Bryan boiler control systems, connected to the Universal Gateway (ProtoAir FPA-W44).
Also known as: PD765, Trident PD765, Precision Digital PD765, ProtoAir FPA-W44, Universal Gateway 106417-04 - Boiler burner management system (LMV36) via ProtoAir gateway
Thermal Solutions Siemens LMV36 burner management (Universal Gateway ProtoAir)
Thermal Solutions and Bryan boilers fired by a Siemens LMV36 burner management system, connected to the Universal Gateway (ProtoAir FPA-W44).
Also known as: LMV36, Siemens LMV36, LMV3, ProtoAir FPA-W44, Universal Gateway 106417-04 - Boiler burner management system (LMV52) via ProtoAir gateway
Thermal Solutions Siemens LMV52 burner management (Universal Gateway ProtoAir)
Thermal Solutions and Bryan boilers fired by a Siemens LMV52 burner management system, connected to the Universal Gateway (ProtoAir FPA-W44).
Also known as: LMV52, Siemens LMV52, LMV5, ProtoAir FPA-W44, Universal Gateway 106417-04, Bryan Boiler LMV52 - Boiler operating controller (RWF55) via ProtoAir gateway
Thermal Solutions Siemens RWF55 boiler controller (Universal Gateway ProtoAir)
Thermal Solutions and Bryan boilers that use a Siemens RWF55 temperature/pressure controller, connected to the Universal Gateway (ProtoAir FPA-W44).
Also known as: RWF55, Siemens RWF55, ProtoAir FPA-W44, Universal Gateway 106417-04, Bryan Boiler RWF55 - Boiler controller (TSBC) via ProtoNode gateway
Thermal Solutions TSBC boiler control (Universal Gateway)
Thermal Solutions boilers with the TSBC control (such as EVS and EVCA), connected through the Thermal Solutions Universal Gateway.
Also known as: TSBC, Thermal Solutions Boiler Control, Universal Gateway, 106417-01, ProtoNode RER, FPC-N34-0816, EVS, EVCA
Source: Universal Gateway Instruction Manual (ProtoAir): BACnet MS/TP, BACnet IP, N2, Modbus · PN 106417-04 Rev A · rev. 2024-05. Object names, instances and units are reproduced as published; descriptions are our own.